baber/WOPTO huggingface dataset:
Patent GB-1416244-A (GB)
Title: Regulated fluid pump
IPC: F04B35/04
Filed: 1973-11-09
Abstract: 1416244 Reciprocating compressors A J SIPIN 9 Nov 1973 [2 Aug 1973] 52134/73 Heading FIN [Also in Division G3] The voltage applied to the armature of an electric motor, having a constant magnetic field, driving a fluid pump is regulated electrically between limit values to maintain the fluid flowrate at a fixed value in the linear flow range of the pump.  As shown, a permanent - magnet field motor 18 drives through an eccentric 44 a piston 33 having a diaphragm seal 38. The flow of air set up by the piston is determined by uni-directional silicone-rubber valves 14, 34 to maintain a controlled flow of air through a sorbent-filled tube 56. The motor 18 is energized from a battery 62 through a regulator 22 so that the applied armature voltage E is maintained constant at a value set on a potentiometer 66. Since the assembly is arranged to have a linear relationship between air-flow and armature voltage the air-flow can be indicated by a scale on the potentiometer, or a voltmeter 68, and integrated by a mechanical counter 54.  In embodiments of the regulator, Darlington - connected transistors or operational amplifiers are shown. The counter 54 can be replaced by an integrating operational amplifier.
Patent GB-1096759-A (GB)
Title: Electric heating coil with reinforced terminal connectors, and method of providing electric heating coils with such connectors
IPC: H05B3/06
Filed: 1965-12-10
Abstract: 1,096,759. Direct connections between wires. T. MOE. Dec. 10, 1965 [Dec. 15, 1964], No. 52590/65. Heading H2E. To avoid undue heat or mechanical stress at a terminal, the end of a heating coil 1 is wound tightly around a pair of intertwined wires 2 of a lower resistivity, the wires 2 being connected directly to the terminal.
Patent GB-1171910-A (GB)
Title: Photosensitive Insulating Material.
IPC: G03G5/087
Filed: 1966-11-24
Abstract: 1,171,910. Electrophotographic materials. RANK XEROX Ltd. 24 Nov., 1966. [30 Nov., 1965], No. 52613/66. Heading H1K. A xerographic plate has a conductive support bearing a bound layer of A<SP>III</SP>B<SP>V</SP> photoconductor particles, the material of these particles having a resistivity of at least 10<SP>10</SP> ohm. cms. Photoconductors identified are gallium phosphide, gallium arseno-phosphide, aluminium phosphide, and boron phosphide. Mixtures of these may be used. The desired high resistivity may be obtained by doping the photo-conductor with one or more of copper, silver, gold, iron cobalt, nickel, manganese, chromium, or oxygen. A process is described in which the photoconductor is heated in a hydrogen-water vapour atmosphere to give oxygen doping. It is suggested that alternatively the high resistivity may be achieved by purification of the photoconductor. Specified binders are polyacrylic acid esters, polybutyl methacrylate, polyvinyl chloride, polyvinyl acetate, copoly(vinylchloride-vinyl acetate), and organic charge transfertype photo-conductors. The photo-conductive layer may contain unspecified sensitizing dyes and other additives to modify its properties. Suitable supports are of aluminium, copper, nickel, steel, bronze, glass, paper, aluminiumcoated glass, engraver's copper or nickel, grained litho zinc, or synthetic thermoplastics.
Patent GB-1174679-A (GB)
Title: A Watch having a pair of Openable Doors for the Watch Face
Inventor: JUILLERAT GEORGES
IPC: G04B45/00
Filed: 1967-11-21
Abstract: 1,174,679. Ornamenting. G. JUILLERAT. 21 Nov., 1967 [31 Jan., 1967], No. 52936/67. Heading B6G. [Also in Division G3] A pendant watch, provided with pivoted covers 8, 9 for the dial face 3, has a case of an outer form simulating a penguin. Reference has been directed by the Comptroller to Specification 969,156.
Patent GB-1201356-A (GB)
Title: A process for the production of tetra-ammonium-dioxotricarbonate uranate
IPC: C01G43/00
Filed: 1967-11-23
Abstract: 1,201,356. Tetra-ammonium-dioxotricarbonato-uranate. NUKEM NUKLEAR-CHEMIE UND-METALLURGIE G.m.b.H. 23 Nov., 1967 [17 Dec., 1966], No. 53309/67. Heading C1A. (NH 4 ) 4 [UO 2 (CO 3 ) 3 ], tetra-ammonium - dioxotricarbonato-uranate, (AUC), is precipitated by the simultaneous introduction of UF 6 , vapour and liquid or gaseous NH 3  and CO 2  into water or recycled precipitation solution, the pH value being maintained from 7.8-to 8.6, the precipitation temperature preferably being up to 70‹ C. The AUC complex can be converted into a high purity UO 2 . The precipitation process can be carried out in a single stage either in batches or in a continuous process. In a continuous process a suspension of AUC in water is recycled through pipe 1 to mixing nozzles 2 and 3 from which it passes to tubes 6 and 7. At the top of these tubes gases UF 6  + CO 2  and NH 3  are introduced to the mixing nozzles. The recycled suspension and gaseous reactants pass into precipitation vessel 8 where AUC is precipitated. Some of the AUC suspension is withdrawn at point 10 and is filtered and the rest is recycled.
Patent GB-1484890-A (GB)
Title: Process and device for the photographic reproduction of diapositives
IPC: G03B27/62
Filed: 1974-12-12
Abstract: 1484890 Reproducing diapositives ELINCA SA 12 Dec 1974 [5 Feb 1974] 53713/74 Heading G2A Diapositives are reproduced by exposing a film to light passed through a diapositive and simultaneously exposing the film to fogging by diffuse light which reaches the film without passing through the diapositive. In one form of device (Figs.) for carrying out the process the camera lens 7 is screwed at 5, 6 into a ring 1 which is screwed at 2, into a camera 4 and illuminating light from the diapositive passes through the lens 7 and between extreme lines 11 to the film 10. Non-maze forming light from a flash tube 13 or other light is transmitted by a bunch of light conducting fibres 9 extending through a side wall 8 of the ring 1 to be directed within the limit lines 24 on to the film 10. The flash tube 13 is surrounded by a manually rotatably cylinder 15 carrying a series of neutral filters of different gradations which are selectively positioned in the light path. The ring 1 may be connected to the lens 7 by a bellows. In another form of device (Fig. 3), rays 31 from the diapositive pass on to the film 30 through a lens 29, bellows 28 and ring 25 screwed to the lens  mount 26 of a camera 27. The ring 25 houses a semi-transparent mirror 32 which reflects non- image forming light to the film 30. This light is supplied by a lamp 36 or flash tube through a diffusing screen 35 and a removable and interchangeable neutral filter 37. The use of the  bellows is optional. Alternatively the mirror is housed in the bellows which in turn replaces the ring. A further device, Fig. 4, is a unit for placing against the camera 42 and comprising a casing 38 having an opening 39 for locating a diapositive in guides 40. Light from a source e.g. flash tube 48, passes through a diffusing screen 47, opening 39, the diapositive and outlet 41 to the camera. Semi-transparent mirror 43 located between openings 39, 41 reflects non-image forming light into the camera. The latter light may be supplied from source 48 or a different source to pass through screen 47, removable neutral filter 50 and, after reflection by a mirror 45 through diffusing screen 44 on to semi-transparent mirror 43. A bundle of optic fibres may replace items 50, 45 and 44 and the associated portion of 47.
Patent GB-1195549-A (GB)
Title: Improvements in or relating to Pillows
IPC: A47G9/10
Filed: 1967-12-04
Abstract: 1,195,549. Pillows. OBERBADISHE BETTFEDERNFABRIK G.m.b.H. 4 Dec., 1967 [30 May, 1967; 11 Aug., 1967], No. 55005/67. Heading A4M. A pillow comprises an outer cover 2 containing an inner pillow 3 filled with inexpensive material 8, e.g. low quality feathers, horse hair or foam rubber waste, the inner pillow 3 being surrounded by a filling of down and having flat, unfilled strap-like extensions 4 extending from its corners and secured to the inside of the outer cover 2. As shown the cover 2 is rectangular and the extension 4 are secured, as at 6, in the corners 5 of the cover 2. In a modification the inner pillow is square and the outer cover is circular.
Patent GB-1411840-A (GB)
Title: Watch case
IPC: G04B37/11
Filed: 1973-11-28
Abstract: 1411840 Watches DAINI SEIKOSHA KK 28 Nov 1973 [8 Dec 1972] 55146/73 Heading G3T In a watchcase having a glass support ring 23 which is sealed to a body 26, e.g. by a gasket 27, and a glass 21 which is sealed to the support ring by a gasket 24 compressed radially between the glass and an upwardly directed flange 22 on the ring, a bezel 30 is fitted on the ring around the flange to prevent outward deflection thereof. The bezel is also stated to prevent twisting of the ring and consequential inward deflection of a second flange 25 which presses radially on the gasket 27. The gaskets 24, 27 are of synthetic rubber; the gasket 24 may be replaced by a rectangular one, (34), Fig. 3 (not shown), and the gasket 27 by an L-shaped one (35). A back 31 is sealed to the body 26 by a further gasket 32.
Patent GB-1243554-A (GB)
Title: Method and apparatus for producing multiple sheet glazing units
Inventor: BABCOCK EUGENE WAYNE
IPC: C03B23/24
Filed: 1968-11-26
Abstract: 1,243,554. Multiple glazing units. LIBBEYOWENS-FORD CO. 26 Nov., 1968, No. 55960/68. Heading C1M. Multiple glass sheet glazing units curved about one axis or parallel axes are formed by supporting a pair of bent sheets 21, 22 horizontally in spaced face-to-face relation, moving the sheets past stationary sources 32 of concentrated heat to cause the straight marginal edges 25, 26 to bend and fuse together, moving the sheets to a second heating area C and stopping the sheets while movable sources 33 of concentrated heat are moved transversely in an arcuate path to apply heat to the curved edges (27), (28) of the sheets to cause them to bend and fuse together. The pairs of sheets 21, 22 are supported on a rack 50 having straight sides 54 and curved sides 55, the top sheet 21 being larger and supported by edge bars 61, each rotatable about a pin 63 and moved out of the way of the burners 32, 33.by engagement of a pin 67 by levers 108 and (177) respectively. Each burner 32 is adjustably mounted by means 101 extending outside the furnace 31 so that the tips 104 of burner heads 100 are directed to the straight edges 25,26 of sheet 21 which sag and bend downwardly to fuse to the edges of sheet 22. Each burner 33 is mounted on an arm 133 of a framework 135 which is adjustably mounted on a rod 136 for positioning the burner heads 130 over the edges of the sheets. The arms 133 are moved over an arcuate path by means of a bar 152 parallel to rod 136 and mounted below, the bar 152 being moved by a linkage 156 from a pressure cylinder 157. The racks 50 are guided on rollers 70 by side guides (90) and rollers 93 on burners 32 and the rollers 70c in the second heating area C are separately controlled. Stopping of the racks 50 in the area C is effected by stop members 111  mounted on a shaft 112 rocked to move the members 111 to operative position by a pressure cylinder 125. As the rack 50 is stopped, it interrupts a beam of light between a light source 119 and photo-cell 120 to initiate movement of burners 33. A suitable circuit is disclosed, As shown in Fig. 15, for compound curvatures, the arms 275 of the framework 135 each carry a movable burner 273, the burner being sup ported by rollers 258 running in a slot 277 in the arm 275 and having a roller 288 to engage the surface 280 of a template 279 following the curve of the pair of sheets.
Patent GB-1369529-A (GB)
Title: Conveyors
IPC: B65G39/12
Filed: 1972-12-05
Abstract: 1369529 Guiding endless belts V K DYACHKOV 5 Dec 1972 55992/72 Heading B8A The conveying and return runs of an endless belt 1 have curvilinear and rectilinear portions, the curvilinear portion of the return being supported by vertically disposed idler rollers 11, progressively inclined idler rollers 12 supporting the return run of the belt in its transition from the rectilinear to the curvilinear portion. The idlers 12 are so inclined that the idlers 11 engage the reverse face of the belt 1, horizontal idlers for supporting the rectilinear return run engaging the load supporting face. The conveying run is supported by troughing rollers 5 carried by bearers 6, the bearers 6 at the curvilinear portion being pivoted at 16 to the outer side of the conveyer with the inner side of the bearers 6 supported by springs 14,
Patent GB-1338499-A (GB)
Title: Gas turbine engine
IPC: F02K3/04
Filed: 1971-12-03
Abstract: 1338499 Gas turbine ducted fan engines ROLLS-ROYCE (1971) Ltd 3 Dec 1971 56196/71 Heading F1J The invention relates to a gas turbine ducted fan engine in which the fan turbine drives the fan by means of a plurality of layshafts connected by gears to the turbine and the fan. The engine comprises LP compressor 11, HP compressor 12, combustion equipment 13, HP turbine 14, LP turbine 15 and a fan driving turbine 16. The turbine 16 is drivingly connected to the fan rotor 19 by means of a plurality of layshafts 21 which extend across the turbine working fluid annulus being enclosed within fairings 23. The fan turbine 16 is secured to a shaft assembly 32 which is supported in a ball bearing 35. The shaft is formed with a flange 36 which carries a driving bevel gear 37. A bevel pinion 38 is mounted on a layshaft 21 by means of a spline connection 43, 44, also by means of a flange 45 on the shaft which engages a flange 47 on the pinion through a ring member 46. A retaining plate 48 engages against the flange 45 and is retained by means of a spring ring 49. The bevel pinion is supported within gear housing 42 by means of a ball bearing 39 and a pair of roller bearings 40, 41. A bevel pinion 57 is mounted at the other end of the layshaft by means of a sleeve 58 which is in splined engagement 59, 60 at one end with the layshaft and in splined engagement 61, 62 at the other end with the bevel pinion. The pinion is rotatably mounted in the housing 51 by means of two roller bearings 63, 64. The bevel pinion engages a bevel gear 70 which is secured to the shaft 71 on which the fan rotor blades 72 are mounted, the shaft being rotatably mounted in a ball bearing 73 which forms the sole support for the fan rotor. The splines 59, 60, and 61, 62 may be of different pitch so as to form a vernier type coupling. The layshaft extends through a tube member 50, the tube member being connected to the gear housing 51 by means of a compression joint 52 which comprises a tube with an internal conical surface at one end and externally screwed at its other end, a sleeve 56 formed with conical surfaces one of which engages the conical surface of the tube 52 and the other of which is engaged by the conical surface of a ring member 55, a nut 54 engaging against the ring member.
Patent GB-1188570-A (GB)
Title: Process for the Preparation of Substituted 2-Amino-1,3-Propanediols
IPC: C07B/
Filed: 1967-12-13
Abstract: 1,188,570. Phenyl-2-amino-1,3-propanediols. CARLO ERBA S.p.A. 13 Dec., 1967 [13 Dec., 1966 (3)], No. 56708/67. Heading C2C. Optically active 1-phenyl- or -p-nitrophenyl- 2-amino-1,3-propanediol is prepared by hydrolysing 4 - phenyl- or -p - nitrophenyl - 5 - amino- 1,3-dioxane or an N-acyl derivative thereof with a solution of an arylsulphonic acid in a hydroxy. lic organic solvent and when the starting material is not optically active, resolving the product into its optical isomers. In an example, DL - threo - 4 - phenyl - 5 - amino - 1,3 - dioxane and p-toluenesulphonic acid are dissolved in ethylene glycol, heated for at least 10 hours at 80-120 C., excess glycol is dist. off and DL- threo - 1 - phenyl - 2 - benzylidene - amino - 1,3- propanediol is obtained from the residue by reaction with NaOH and benzaldehyde; DL- threo - 1 - phenyl - 2 amino - 1,3 - propanediol is prepared from the p-toluenesulphonate by treatment with a suitable ion-exchange resin. In further examples the DL-threo-1-phenyl-2- amino-1,3-propanediol obtained as above or by hydrolysis of the benzylidene derivative is resolved using D-dibenzoyl-tartaric acid or L- glutamic acid.
Patent GB-1371928-A (GB)
Title: Beam current limitting circuit
IPC: H04N5/59
Filed: 1971-12-08
Abstract: 1371928 Cathode-ray tube circuits; transistor switching and time-base circuits PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 8 Dec 1971 57009/71 Headings H4T and H3 [Also in Division H2]  The beam current in a television cathode-ray display tube is limited by supplying to the line 9 connected to the brilliance control potentiometer R13 (or to a contrast control line) a voltage derived by rectification in D1 of the voltage in a winding 7 on the line output transformer T2 when, due to an increased beam current load, the level of this voltage falls below a level proportional to a reference level set by potentiometer R12. The latter holds the base of Q4 at a constant voltage so that the fall of the emitter voltage reduces the conduction and lowers the voltage at the collector. Emitter follower Q3, which is employed to prevent the low impedance of line 9 from loading the collector electrode circuit of Q4, then couples the voltage at the latter electrode to line 9 via diode D2 when such voltage falls below that at the cathode of diode D3. This reduces the beam current and when the latter reaches or falls below the level determined by R12 (which sets the maximum beam current) line 9 is isolated and R13 again determines the beam current. The line time base includes driver transformer T1 the two secondaries 3, 4 of which are connected to respective switching transistors Q1, Q2 (controlling the current in the primary 5 of the line output transformer T2) via respective circuits L1, R1 and L2, R3 which provide line storage time equalization and capacitors C3, C4 tune transformer T2 during fly-back periods. In addition to winding 7, which provides + 23À5V operating potential for parts of the receiver and may provide the voltage supply via terminal 10 to the brilliance control network, transformer T2 has other secondary windings supplying the deflection coils and providing, via rectifying circuits, the EHT voltage and other required operating voltages. The invention has particular application to shadow mask type colour television receivers in which increased beam current results in coloured haloes since the three beams go out of focus at different rates. Additionally, the fall in EHT voltage resulting from excessive beam current produces a change in convergence.
Patent GB-1333580-A (GB)
Title: Calcination furnaces and methods of calcination
IPC: C04B11/028
Filed: 1970-12-03
Abstract: 1333580 Retort furnaces AGIP NUCLEARE SpA 3 Dec 1970 [3 Dec 1969] 57572/70 Heading F4B A calcining retort furnace comprises one or more vertical ducts defining a preheating zone 8, a calcining zone 9 and a cooling zone 10, air being passed through a duct 22 surrounding the zone 10 into a chamber 4 surrounding the zone 9 and containing an electrical heating coil 2, and the heated air passing from the chamber 4 through apertures 5 and upwardly through zone 9. The air emerging from zone 9 flows upwardly through zone 8 and through a duct 21 surrounding zone 8. A hopper 1 delivers material to be calcined and/or inert material to the zone 8. The rate of discharge from the furnace is controlled by a vibrating tray 7 having a sieve 20. The heating coil 2 is controlled by a thermocouple 15 in the chamber 4. The hopper 1 may include a low level control system operating in response to a photo-electric cell.
Patent GB-1164679-A (GB)
Title: An Optical Viewing System for Telescopes or other Optical Devices
IPC: G02B13/00
Filed: 1967-12-20
Abstract: 1,164,679. Telescopes. ERNST LEITZ G.m.b.H. Dec.20, 1967 [Dec.21, 1966], No. 57839/67. Heading G2J. An optical viewing system for an optical device, such as a telescope or monocular or binocular field-glasses, comprises a pair of Galilean systems 3, 4, reversed with request to one another positioned between two components 1, 2, forming an aplanat. As shown the system is symmetrical about the central stop and optical data are provided for one example. The pivoted mirror 5 is provided for diverting the rays to an image plane of an infrared image converter.
Patent GB-1408648-A (GB)
Title: Treatment of corundum crystals
IPC: C30B29/26
Filed: 1972-12-19
Abstract: 1408648 Gems UNION CARBIDE CORP 19 Dec 1972 [20 Dec 1971 4 Dec 1972] 58467/ 72 Heading A3H [Also in Division Cl] Gem stones are produced by masking imperfections of corundum crystals by contacting the surface of the crystal with a powder comprising alumina containing 1-30% by wt. of TiO 2  and 0.25-20% by wt of a metal oxide colourant and heating the crystal in contact with the powder at 1600-1850C for 2-200 hours. The oxide colourant is preferably an oxide of iron, chromium, nickel or vanadium. The crystal may be subjected to a further conventional asteriating treatment at 1100-1500C.
Patent GB-1415180-A (GB)
Title: Method of and apparatus for assessing the moisture of tobacco or the like
IPC: G01N27/22
Filed: 1972-12-20
Abstract: 1415180 Drying tobacco HAUNI-WERKE KORBER & CO KG 20 Dec 1972 [31 Dec 1971] 58698/72 Heading F4G [Also in Division G1] A tobacco drying plant includes capacitive moisture sensor devices 3a, 3b and control circuits 28a, 28b (see Division G1). Tobacco 13 from a feeder 2 passes on to an endless conveyer 42, Fig. 2, and a presser conveyer 44 presses the tobacco down on to an insulating plate 52 on the underside of which are electrodes 53, 54 of a capacitive moisture sensor. A feeler member 55 carrying a thermometer resistor element 60 is also provided. The tobacco then enters rotatable drying drum 1 where it is dried by air from an air heating device 4, controlled by circuit 28a, Fig. 5 (not shown), in accordance with the sensor 3a and thermometer 60 outputs, and which blows hot air through inlet 12 into the drum. Tobacco leaves drum 1 via shoot 16 and its moisture content is again measured by a second device 3b which via circuit 28b controls the adjuster 8 of a steam generator 7 which supplies steam to pipes 9 to remove any residual moisture.
Patent GB-1435190-A (GB)
Title: Pumps
IPC: B05B11/00
Filed: 1973-12-20
Abstract: 1435190 Reciprocating pumps ENGLISH GLASS CO Ltd 17 Sept 1974 [20 Dec 1973] 59166/73 Heading F1A A pump 4 is mounted on the neck of a container, e.g. a glass or plastics bottle, by a connector 2 of resilient, elastomeric material which deforms elastically to fit the neck and retain the pump on the container. The connector may have annular ribs, as shown, with constant or varying wall thickness, or may have axial, triangular-section, internal ribs (30), Figs. 4a and 4b (not shown). In Figs. 5a and 5b (not shown), the connector has concentric cylindrical walls, the inner wall (32) having a divided, inwardly-extending, lower lip (32a) for gripping the container neck. The connector 2 has an inwardly-extending, upper flange gripped between body portions 14 and 16 of the pump. In Fig. 6 (not shown), the upper flange (10') is beaded and engages a complementary flange (34) on the lower pump body portion (16'). The pump has a hollow, spring-loaded piston 26 drawing from dip tube 20 via a check valve and delivering to spout 22.
Patent GB-1300988-A (GB)
Title: Method of manufacturing chirurgical sutures and chirurgical sutures obtained thereby
Inventor: MIRKOVITCH VELIMIR
IPC: A61L17/14
Filed: 1970-12-18
Abstract: 1300988 Coated chirurgical sutures SUTRAMED Sarl 18 Dec 1970 [26 Dec 1969] 60144/70 Heading D1P Chirurgical sutures are made by a method which includes dipping the suture into a bath of a liquid silicone which does not contain a solvent, wherein the suture is resorbable and the treatment with the silicone increases the resorbtion capacity of the suture. The viscosity of the silicone e.g. dimethyl polysiloxane may have a range of 20 to 1000 centistokes and the period of dipping may be from one to two hours to several days in a bath generally at room-temperature to 100C.